Using this hoodie is as easy as it gets. Just slip it on and you're ready to show off your cool style. When it comes to sizing, remember to order 1 - 2 sizes bigger than your normal one as the international size we use is smaller than the USA standard. Check the size chart for the best fit. As for maintenance, you can machine - wash it in cold water on a gentle cycle with mild detergent. After that, just hang it up to dry. Keep in mind that there might be a little difference in color between what you see on the screen and the real hoodie because of monitor settings, and the measurements are approximate.